Island



`To lall "301mm it sima/"concerns l declare that the following specification, taken in connection with the drawings making a part of l'the n yarns are led,` from as many,bobbins, and combined -stopping the spindle; and, in

` devices .which actto are being doubled,.at some point` between "thef'place gattini (opine.

JAMES ARNOLD, 0F PAWTUOKET, RHODE ISLAND.

.Lette/rs Patent No. 103,277, dated May 24, 1870.

ECHA'NISM 'O DOUBLIG, SPQQLING, AND LIKE MA- l CEINES..

referred to in these Letten Pbentvand ranking 'part ct therme.

Be vit known'that` I', JAMns Annonnfof-Paw# tucket, in theV county "otProvidence and' State of Rhode Island, have invented a new and useful Improved Stop-motion for Spoolers; and .I do hereby same, isa full, clear, und exact description thereof. This invention is applicable to machines-nsedfor doubling several yarns into one, 'commonly called spooling-inachincs. In suoli machines two or more in one thread, which is wound upon a spool, a revolving mot-ion being givenio the spool which gives the necessary draft to unwind the several yarns from their hobbins.` ,With such' machines, stop-motions have heretofore been employed,` so that, `upon the breaking'of anyoneof the`y:irns,`ti1e'mot`in of the" spool upon which it should be wound is arrested.

For this purpose various devices haveV been contrived, most of `which make use of weighted levers supported by the' yarns, `any one of which levels in'- changing position vin consequence of the breaking of its supporting the spool. Sometimes these levers are made -to act to stop tliespindle whch're'volves thespool; In other instances they act to; hold. the spool without a third instance, they cause the spool to bef stopped by disconnecting it from the source of itsmotion. n l My improvement consists in thc-employmentof gradually stop the spool 4by seizing and holding fast the threeLor morejyarnswhicli where 4the breakage occuls and the spool, and `thus prevent a broken end from losing itself on the spool.y In the drawings-y "Figure 1is a side view vof so muchof aispooler as will'enable'theimprovement to he understood. Iigure 2 is a front view, showing a section offtlie supporting-standard.and tripping-wires. y v

Several yarns, a a a, are led from as manydliir; cnt cops or bobbins, `which hobbins are conveniently arranged on acrecl or frame.

Each yarn supports, inan upright posit-ion, a separate weighted wire lever, A, pivotcd to the supporting;siandard .B at b, It' the yarn breaks,'the lover will fall to the point indicated by dotted lines.

, C` is a spring catch, which may be of any pret'e'iged construction. In this instance it is a iiat spring, secured to the standard B at c, with the short arms d of the several wire levers A so located with' respect to the same that, when any one of snchiievers is in "of upward movement.

yarn will stop the further rotation of the position,indicaiedrby dotted lines, the upper` end oil the sprlng G'will be forced outward. from the standard.- s Y The upper end of the spring isfurnished with-a catch, e, l'with which the foot-piece f, on the D, can .be engaged, as will presently b e described..

Theseveral strands oi' yarn'are collected into one thresd,`w,hich is led through an eye, shown in sec- `tiolliat E. v From .tlieice it passes between'the/two disk-'plates F It over the roller E to the spool.

' These plates perform the function of spring pressure-fingers in closing upon the thread; and holding it-fastso soon as one of the single strands composing it, by reason of breaking, allows one of. the wire levers to fall; by the following'. means., i

The rod D, which-carries the .two plates l. F, is fitted to slide -in bearings G G. A stop-pin, g, lim- ;fs'he'llitent oft's `doifvnward movement, and in this instance the bent end ofthe foot-piece f, lockingwith the bent neck of the spring cat-ch @limits its range '.lhe upper plate F is free ttnrn varound the rod D, but is otherwise iixedain position, while the lower plate 11" is not only free to turn around the rod, but is capable o'fbei'ng moved along the rod for a dis= tance equal to the space between the under surface ofthe fixed up'pcr plate F and a collar or shoulder, 71, on therod Il).V y i -H 'is acoiled spring, wound around therod D, the lower end ofwhich rests upon the bracket G, and the upper end against a stock-pin, i. The nppcrextremity of the rod Disl furnished with a button-head, I, forconvenieiitly working the rod.` A

1 .fWhenthe machine is in operationytherod,D is held by the spring catch e inthe position-shown at The two plates F F'a're.thus separated by'a distance which allows the free/passage ofv the thread to the spoo, which spool is placed upon a spindle and heldfby'a slight friction with `a resisting power less than the tcnsilcl strength of the thread winding upon the spool.

So soon as one of thc yarns composing the thread breaks and allows the lever which it previously sustained to fall, Vthe catch -e will be tripped, and the spring 1I will ily upward, causing the pin' g; or other mechanical device employed for thc purpose, to bring thcaipper surface of the plates F* into. close contact with the under surface of thc plate 1P; consequently thc scp'eral'stranI s composing the thread, including,` the one with the brokenend, will be held fast, and such broken end be prevented from running onto the spool, and the spool itselfbe stopped -by the superior strngth of thc yarns composing it, over the friction l This m'ode of operation is accomplished which drives the spool. By this means` the advantages above mentioned are secured, and the attendant is able to piece the broken end with the greatest facility and expedition.

`As has been before stated, the plates F F are arranged-to. turn on the rod D. This arrangement is of special advantage, for the reason that it allows the said plates to turn for a quarter of a circle after they have closed upon the thread, and thus bring the spool to a stand-still with less suddenness than if the plates stopped the spool upon the instant that their surfaces came together.

If it is desirable to do so, a yielding spring can be combined with such plates, and the axle upon which they are placed, to still further prevent the injurious consequences of a sudden strain.

In the drawings, the spring iinger-plates are shown in a horizontal position, and this is the most convenient way to arrange them, in my opinion; but it is quite easy to place them perpendicularly without departing from the principle ofthe invent-ion.

I wish it to be understood that I do not claim the application of a tripping mechanism or stop-motion to a spoolcr. Neither, on the other hand, is the invent-ion confined to the particular construction and arrangement of the tripping mechanism in its combination with the spring finger-platesF F1, but includes those formal variations of construction which come within the capacities of competent workmen.

What I claim as my invention, and desire to secure by Letters latent, is-

1. The pressure-finger F F, for seizing the double thread upon the breaking of a'single strand, when such fingers are free to turn on or around the rod or axe on which they are mounted, and thereby. gradually check the rotation of the spool, substantially as herein described;

The combination of pressure-fingers F Fl, constructed as above described, with a suitable tripping mechanism or stop-motion, substantially as specified.

, JAMES ARNOLD.

Witnesses:

OnvILLn PECKHAM, Parnu F. HUGHES. 

